Bug#867701: Radeon HD 6450, black screen, cursor, no console

[Ivan Sergio Borgonovo]

On 07/15/2017 05:29 AM, Michel Dänzer wrote:
> On 15/07/17 07:10 AM, Ivan Sergio Borgonovo wrote:
>> On 07/10/2017 04:03 AM, Michel Dänzer wrote:
>>> On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:
>>>> Package: xserver-xorg-video-radeon
>>>> Version: 1:7.9.0-1
>>>> Severity: grave
>>
>>> I doubt this severity is justified.
>>
>> Why?
>> X doesn't start so it "makes the package in question unusable", not to
>> mention that it makes all packages requiring X unusable.
> 
> The bug severities are defined in the context of all users, not just
> some individual users. "Makes the package in question unusable" means
> the package cannot be used on any system, which isn't the case here (or
> there would have been many more reports about it, but there hasn't been
> any other report).

Fine even if I don't find practically useful the constraint of "all users".
In effect without knowing the nature of the bug and the effective 
affected system, setting the severity to "grave" is a way to stop users 
from upgrading if they use apt-listbugs.
Probably the problem arise from the superposition of "priority" for 
developers and "severity" in the same tag.

> Please provide the output of the following:
> 
> apt-cache policy libegl1-mesa
> 
> ldconfig -p|grep libEGL

See attachments.

>>> Does the same problem happen with 1:7.8.0-1+b1 with
>>>
>>>      Option "AccelMethod" "glamor"
>>>
>>> in /etc/X11/xorg.conf ?
>>
>> Older xserver-xorg-video-radeon with that option DOESN'T WORK.
>> Black screen, text cursor at the top right corner ( _ ).
> 
> Right, as expected the problem is specific to glamor, which is the
> default for your GPU in 7.9.0 but wasn't yet in 7.8.0. This means in the
> worst case you can work around the problem with
> 
> 	Option	"AccelMethod" "EXA"
> 
> in /etc/X11/xorg.conf.

Thanks, this solved the problem.

Could I suggest to add some notes in the changelog before closing the bug?

Thanks again.

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it http://www.borgonovo.net

-------------- next part --------------
libegl1-mesa:
  Installed: 13.0.6-1+b2
  Candidate: 13.0.6-1+b2
  Version table:
     17.1.4-1 550
        550 http://ftp.it.debian.org/debian unstable/main amd64 Packages
        550 http://ftp.ch.debian.org/debian unstable/main amd64 Packages
        550 http://ftp.uk.debian.org/debian unstable/main amd64 Packages
        550 http://ftp.at.debian.org/debian unstable/main amd64 Packages
 *** 13.0.6-1+b2 990
        990 http://ftp.it.debian.org/debian testing/main amd64 Packages
        990 http://ftp.ch.debian.org/debian testing/main amd64 Packages
        990 http://ftp.fr.debian.org/debian testing/main amd64 Packages
        990 http://ftp.at.debian.org/debian testing/main amd64 Packages
        100 /var/lib/dpkg/status
-------------- next part --------------
	libEGL.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libEGL.so.1